Title: Bence–Jones protein Long Title: IUPAC Gold Book - Bence–Jones protein DOI: 10.1351/goldbook.12947 Status: current Definition Excess circulating kappa ($\kappa$)-light chain found in the urine of patients with multiple myeloma. Related Terms - kappa (κ)-light chain: https://goldbook.iupac.org/terms/view/13358 - multiple myeloma: https://goldbook.iupac.org/terms/view/13477 Source - PAC, 2012, 84, 1113. 'IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)' on page 1134 (https://doi.org/10.1351/PAC-REC-11-06-03) Other Outputs - html: https://goldbook.iupac.org/terms/view/12947/html - json: https://goldbook.iupac.org/terms/view/12947/json - xml: https://goldbook.iupac.org/terms/view/12947/xml Citation: Citation: 'Bence–Jones protein' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.12947 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-05-10T23:54:32+00:00